Harry Potter fans will have to wait even longer for the 6th film about the kid wizard to come out. According to the Hollywood Reporter, Warner Bros. has moved the release date of Harry Potter and the Half-Blood Prince from Nov. 21, 2008 to July 17, 2009. Warners president Alan Horn blamed last winter's 100-day WGA strike in large part for the shift, implying that major studios were slammed in the development of new tentpole films for next summer.

“We are still feeling the repercussions of the writers strike, which impacted the readiness of scripts for other films — changing the competitive landscape for 2009 and offering new windows of opportunity that we wanted to take advantage of,” Horn said. “We agreed the best strategy was to move ‘Half-Blood Prince' to July, where it perfectly fills the gap for a major tentpole release for midsummer.”

The move also reflects execs' assumptions that the “summer season is an ideal window for a family tentpole release,” he said.